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Pseudo-Class tip added #168

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Pseudo-Class tip added #168

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23 changes: 23 additions & 0 deletions README.md
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Expand Up @@ -45,6 +45,7 @@ A collection of tips to help take your CSS skills pro.
1. [Use Pointer Events to Control Mouse Events](#use-pointer-events-to-control-mouse-events)
1. [Set `display: none` on Line Breaks Used as Spacing](#set-display-none-on-line-breaks-used-as-spacing)
1. [Use `:empty` to Hide Empty HTML Elements](#use-empty-to-hide-empty-html-elements)
1. [Use `:is` for Selecting Multiple Elements](#use-is-for-selecting-multiple-elements)


### Use a CSS Reset
Expand Down Expand Up @@ -640,6 +641,28 @@ If you have HTML elements that are empty, i.e., the content has yet to be set ei
<sup>[back to table of contents](#table-of-contents)</sup>


### Use `:is` for Selecting Mulitple Elements

If you have multiple selectors, and you want to give same css, you can use this pseudo-class. The `:is()` function takes precedence over other selectors, so you can use it to override styles set by other selectors.

```css
.highlights {
background-color: blue;
}

:is(.highlights) {
background-color: yellow;
font-weight: bold;
}
```

Morever you can use the `:is()` function to select multiple elements at once, by combining selectors in the parentheses. For example: `:is(h1, p)` will select all elements with either the tags `"h1"` or the `"p"`.

#### [Demo](https://codepen.io/khan_zada22/pen/bGjJXZQ)

<sup>[back to table of contents](#table-of-contents)</sup>


## Support

Current versions of Chrome, Firefox, Safari, Opera, Edge, and IE11.
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